/*
 * The MIT License
 *
 * Copyright 2014 David Rodenas Pico.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package edu.uoc.sd.fr14.imesg;

import java.io.Serializable;

import edu.uoc.sd.fr14.actors.Server;
import edu.uoc.sd.fr14.mesg.MessageForServer;
import edu.uoc.sd.fr14.mesg.TargetId;
import edu.uoc.sd.fr14.mesg.TargetedMessage;
import edu.uoc.sd.fr14.model.Nseq;
import edu.uoc.sd.fr14.model.ServerId;
import edu.uoc.sd.fr14.model.SubLog;


/**
 * Apply message to a server.
 *  
 * @author drodenas
 * @see Server#apply(Nseq, SubLog, ServerId)
 */
public class ApplyMessage extends TargetedMessage implements MessageForServer, Serializable {
	private static final long serialVersionUID = -6699709734727966726L;
    protected ApplyMessage() { this.nseq = null; this.ops = null; this.from = null; }
	
	private final Nseq nseq;
    private final SubLog ops;
    private final ServerId from;

    /**
     * New apply message.
     *  
     * @param target to which server
     * @param nseq   which first op position in from server
     * @param ops    ops to be applied
     * @param from   server who creates and sends this message
     * @see Server#apply(Nseq, SubLog, ServerId)
     */
    public ApplyMessage(TargetId target, Nseq nseq, SubLog ops, ServerId from) {
        super(target);        
        if (nseq == null) throw new NullPointerException("Illegal argument: nseq cannot be null");
        if (ops == null) throw new NullPointerException("Illegal argument: ops cannot be null");
        if (from == null) throw new NullPointerException("Illegal argument: from cannot be null");        
        
        this.nseq = nseq;
        this.ops = ops;
        this.from = from;
    }
    
    @Override
    public void apply(Server server) {
        server.apply(nseq, ops, from);
    }

    @Override
    public String toString() {
        return "apply("+nseq+","+ops+","+from+")>"+getTarget();
    }

}
